import { describe, expect, it, vi } from 'vitest';
import { protobuf_decode, protobuf_encode } from '@snowluma/proton';
import type { OidbBase } from '@snowluma/proto-defs/oidb';
import type { OidbAiVoiceReq, OidbAiVoiceResp } from '@snowluma/proto-defs/oidb-actions/media';
import type { SendPacketResult } from '@snowluma/common/packet-sender';

import { FetchAiVoice } from '../../../src/oidb-services/extras/fetch-ai-voice';

function makeSender(body?: OidbAiVoiceResp) {
    const responseData =
        body !== undefined
            ? Buffer.from(protobuf_encode<OidbBase<OidbAiVoiceResp>>({ body }))
            : Buffer.alloc(0);
    const r: SendPacketResult = {
        success: true,
        gotResponse: true,
        errorCode: 0,
        errorMessage: '',
        responseData,
    };
    return { sendRawPacket: vi.fn(async () => r) };
}

describe('FetchAiVoice namespace', () => {
    it('declares 0x929B_0', () => {
        expect(FetchAiVoice.command).toBe(0x929b);
        expect(FetchAiVoice.subCommand).toBe(0);
    });

    describe('serialize', () => {
        it('packages every field including sessionId into session sub-message', () => {
            const out = FetchAiVoice.serialize({} as any, {
                groupId: 100,
                voiceId: 'v',
                text: 'hi',
                chatType: 1,
                sessionId: 0xcafe,
            });
            expect(out).toEqual({
                groupUin: 100,
                voiceId: 'v',
                text: 'hi',
                chatType: 1,
                session: { sessionId: 0xcafe },
            });
        });
    });

    describe('deserialize', () => {
        it('returns the first msgInfoBody index', () => {
            const node = { fileUuid: 'uuid', subType: 1 };
            expect(
                FetchAiVoice.deserialize(
                    {} as any,
                    {
                        field2: 319,
                        field3: 20,
                        msgInfo: { msgInfoBody: [{ index: node }] },
                    } as any,
                ),
            ).toEqual(node);
        });

        it('returns null when msgInfo is empty / missing', () => {
            expect(FetchAiVoice.deserialize({} as any, {} as any)).toBeNull();
            expect(FetchAiVoice.deserialize({} as any, { msgInfo: {} } as any)).toBeNull();
            expect(
                FetchAiVoice.deserialize({} as any, { msgInfo: { msgInfoBody: [] } } as any),
            ).toBeNull();
        });
    });

    describe('invoke (e2e)', () => {
        it('routes to OidbSvcTrpcTcp.0x929b_0', async () => {
            const sender = makeSender({
                msgInfo: { msgInfoBody: [{ index: { fileUuid: 'u' } }] },
            } as any);
            await FetchAiVoice.invoke(sender, {
                groupId: 1,
                voiceId: 'v',
                text: 't',
                chatType: 1,
                sessionId: 1,
            });
            expect(sender.sendRawPacket.mock.calls[0]![0]).toBe('OidbSvcTrpcTcp.0x929b_0');
        });

        it('returns the parsed media node', async () => {
            const node = { fileUuid: 'uuid', subType: 1 };
            const sender = makeSender({
                field2: 319,
                field3: 20,
                msgInfo: { msgInfoBody: [{ index: node }] },
            } as any);
            const out = await FetchAiVoice.invoke(sender, {
                groupId: 1,
                voiceId: 'v',
                text: 't',
                chatType: 1,
                sessionId: 1,
            });
            expect(out).toMatchObject(node);
        });

        it('returns null when server polls back empty msgInfo (in-flight)', async () => {
            const sender = makeSender({} as any);
            const out = await FetchAiVoice.invoke(sender, {
                groupId: 1,
                voiceId: 'v',
                text: 't',
                chatType: 1,
                sessionId: 1,
            });
            expect(out).toBeNull();
        });

        it('passes the sessionId through to the wire envelope verbatim', async () => {
            const sender = makeSender({} as any);
            await FetchAiVoice.invoke(sender, {
                groupId: 1,
                voiceId: 'v',
                text: 't',
                chatType: 1,
                sessionId: 0xcafebabe,
            });
            const [, bytes] = sender.sendRawPacket.mock.calls[0]!;
            const env = protobuf_decode<OidbBase<OidbAiVoiceReq>>(bytes);
            expect(env.body?.session?.sessionId).toBe(0xcafebabe);
        });
    });
});